or I guess I should say the shoulders. It lookes kind of unnatural (or as unnatural as they can be on an unknown creature) with them so high up and so far out. The arms swinging look kind of like an afterthought to the head and torso.

We have a Yagoth. It has the wings, LED eyes and Strobe options. The shoulders rock back and fourth, the head tilts up,down, left and right. The body lifts at the waist. The arm movement you see at the shoulder is a free movement articualtion. As for the price difference between the rock monster and the Yagoth its about $15,000.